I cannot seem to fit my freezer 13 on my motherboard (AsRock am3+ u3s3). The screws you screw down to the mounting hooks don't seem to reach. Also the mounting hooks don't seem to stay on anyway and I have to hold them. If you look here: http://www.arctic.ac/en/p/cooling/cpu/3/freezer-13.html... (spare parts section) the amd hooks have 3 holes yet I only have one clip thing on my motherboard so they just don't stay on which probably doesn't help when I try to attach the screws.
Hi mate yeah you have to put the screws on really loose. Don't tighten them , keep the brackets loose then fit the brackets on and quickly tighten one side of the bracket so the cooler is in place. It took me a few attempts to fit my cooler on & my one is really big so was hard to get my hands in.